Recently Viewed

Cosmos bipinnatus 'Rubenza'

Cosmos bipinnatus 'Rubenza' is an even darker, richer and more luscious colour than Cosmos 'Antiquity' or 'Dazzler', and Rubenza is a short cosmos too so should not need staking in a sheltered spot. More

More Details

Cosmos bipinnatus 'Rubenza' is an even darker, richer and more luscious colour than Cosmos 'Antiquity' or 'Dazzler' and is a shorter variety too, so should not need staking in a sheltered spot.

Genus

Cosmos bipinnatus

Variety

Rubenza

Type

Half-Hardy Annual

Border Position

Back,
Middle

Soil Type

Chalky,
Neutral

Scent

Unscented

Site

Full Sun, Shelter

Moisture

Well-drained,
Moist but Well-drained

Height

75cm (30in)

Spacing

30cm (12in)

Sowing, Seeds, Planting

Sow under cover in mid spring and plant out after last frosts, or direct sow early May.

Care Tips

Pinch out tips at 15-20cm to encourage bushier plants. This is a perfect variety for growing in container pots.

Flowering

June - November, 12-14 weeks from sowing

Vase Life

7-10 days, no conditioning needed. Pick fresh straight into water, just as the buds are about to bloom, and do not pick in the heat of the day. Deadhead the main blooms that are drooping and going over after about a week. Place out of direct sunlight.

Review guidelines

Please let us know how you got on with growing our seeds, bulbs and plants, or using a piece of kit, or taking part on one of our courses or events.

We love hearing your garden success stories and sharing growing combos, advice and ideas with fellow enthusiasts. If you'd like to share a picture, we love receiving these on Facebook and Twitter.

Please note we may choose to use your review in other places within the sarahraven.com website.

If you've had a problem with one of our products, and for the quickest response, please get in touch with our Customer Service team who can deal with returns and refunds, as well as answer any questions you may have.

Stunning

Reviewed 19th June 2015 by Chris Page

A beautiful ruby red cosmos, which fade to a pale terracotta red. So the combination of flower colour on one plant is stunning. One I plan to grow again.

Champion of the clarets!

Reviewed 8th October 2014 by Arthur Parkinson

Not only does this annual have one of the most sumptuous titles but it's also a worthy choice as a summer bloomer. Shorter than others so not needing to normally be staked this more dainty cosmos gives just as much punch with it's deep claret petals and honey yellow Center. I love it paired with cerinthe major.

https://www.sarahraven.com/flowers/seeds/annuals/cosmos_bipinnatus_rubenza.htm700032Cosmos bipinnatus 'Rubenza'https://d16wp86s16nsnf.cloudfront.net/sarahraven/product/b0639ed6.030107.jpg/200x200.crop.030107.jpg1.95GBP1.95InStockFlowers/Seeds/AnnualsFlowers/Seeds/CosmosFlowers/SeedsFlowers/PlantsFlowersSeeds to sow now/March/Flower Seeds to SowSeeds to sow now/MarchSeeds to sow now/April/Flower Seeds to SowSeeds to sow now/AprilSeeds to sow now/May/Flower Seeds to SowSeeds to sow now/MaySeeds to sow now/June/Flower Seeds to SowSeeds to sow now/JuneSeeds to sow nowCosmos bipinnatus 'Rubenza' is an even darker, richer and more luscious colour than Cosmos 'Antiquity' or 'Dazzler', and Rubenza is a short cosmos too so should not need staking in a sheltered spot.